Patents by Inventor S. Davidson

S. Davidson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080286486
    Abstract: Polyfunctional cyclic carbonates provide a useful additional monomer for energy-initiated cationic copolymerisation with such other monomers and oligomers as epoxides and oxetanes.
    Type: Application
    Filed: October 27, 2006
    Publication date: November 20, 2008
    Applicant: Sun Chemical Corp.
    Inventors: Shaun L. Herlihy, Brian Rowatt, Robert S. Davidson
  • Publication number: 20080276937
    Abstract: A mask assembly adapted for use with a positive airway pressure device, includes a mask frame, an elbow assembly provided to the frame, a cushion provided to the frame, a forehead support assembly, and a neck to connect the frame to the forehead support assembly, wherein the neck includes a pair of side walls having a streamlined design that is made to look sleek and reduce or minimize obtrusiveness. The pair of side walls may take the form of a single wall or more than two walls. The mask frame may include a recessed port structure including at least one port having access to an interior of the frame which at least in part with the cushion defines a breathing chamber in communication with a nasal passage of the patient in use. The mask frame may also include a channel to receive the cushion. The channel is formed by an outer wall and an inner wall and the channel includes an inner surface having a bead to engage with an outer surface of an edge of the cushion.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 13, 2008
    Applicant: ResMed Limited
    Inventors: Aaron S. Davidson, Lemmy Nga, Michael J. Reid, Angelene M. Ozolins, Scott A. Howard, Amal S. Amarasinghe, Dimitri M. Maurer, Bart J. Caffin
  • Patent number: 7435754
    Abstract: A method of inhibiting the proliferation of a hyperproliferative mammalian cell having a multiple drug resistant phenotype utilizing an amount of a laulimalide compound effective to disrupt the dynamic state of microtubule polymerization and depolymerization to arrest cell mitosis is disclosed, together with laulimalide compounds which find use in such method.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: October 14, 2008
    Assignees: Utah State University, University of Hawaii
    Inventors: Susan L. Mooberry, Bradley S. Davidson
  • Patent number: 7429422
    Abstract: Zirconia particles, methods of making zirconia particles, composite materials that contain the zirconia particles, methods of making the composite materials, and zirconia sols that contain the zirconia particles are described. The zirconia particles are substantially non-associated and have an average size no greater than 50 nanometers and may contain yttrium. The zirconia particles are prepared by a method that includes two separate hydrothermal treatments.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: September 30, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Robert S. Davidson, Brant U. Kolb, Danny B. Anderson, James A. Higgins, Mark J. Hendrickson, John T. Brady
  • Publication number: 20080202198
    Abstract: A scope may include an adjustment dial, which may be moved among a plurality of positions to configure the scope to compensate for projectile drops. The adjustment dial may be labeled with dial-calibration data, which may include one or more distance indicators and/or one or more windage hold-off indicators. The scope may be attached to a gun and the dial-calibration data may be at least partially generated using ballistics performance data based on shots fired by the gun. The dial-calibration data may be at least partially generated using shooting conditions. An electronic device may include a derived distance calculation module, which may be configured to use a distance to a target and actual shooting conditions to calculate a derived distance. The derived distance may be used in connection with an adjustment dial labeled with dial-calibration data at least partially generated using shooting conditions different from the actual shooting conditions.
    Type: Application
    Filed: August 13, 2007
    Publication date: August 28, 2008
    Inventor: Aaron S. Davidson
  • Publication number: 20080203415
    Abstract: Disclosed herein are LED devices having lenses and methods of making the devices. The LED devices are made using an optical layer comprising a plurality of lens features. The optical layer is disposed relative to the LED die such that at least one LED die is optically coupled to at least one lens feature. A lens can then be made from the lens feature and excess optical layer removed to provide the device.
    Type: Application
    Filed: February 13, 2008
    Publication date: August 28, 2008
    Inventors: D. Scott Thompson, Robert S. Davidson, Chien-Chih Chiang, Huang Chin Hung
  • Publication number: 20080167397
    Abstract: In a cationically curable composition comprising an epoxide, a cationic photoinitiator and a cyclic carbonate, we have found that the use of higher levels of cyclic carbonate than have been used hitherto can lead to much enhanced cure speed and post-cure.
    Type: Application
    Filed: February 16, 2006
    Publication date: July 10, 2008
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Shaun L. Herlihy, Stephen S. Standing, Robert S. Davidson
  • Publication number: 20080146693
    Abstract: A coating composition for cationic curing comprises an epoxide, a multi-functional oxetane, a cationic photoinitiator and a cyclic carbonate at a higher level than has been used conventionally. This appears to have a synergistic effect, improving cure speed and post-cure.
    Type: Application
    Filed: February 16, 2006
    Publication date: June 19, 2008
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Shaun L. Herlihy, Stephen S. Standing, Robert S. Davidson
  • Publication number: 20080138536
    Abstract: A sprayable energy-curable coating composition comprises an epoxide monomer or oligomer, a cationic photoinitiator and a cyclic carbonate, the cyclic carbonate being present in an amount of at least 7% by weight of the entire composition.
    Type: Application
    Filed: February 16, 2006
    Publication date: June 12, 2008
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Shaun L. Herlihy, Stephen S. Standing, Robert S. Davidson
  • Patent number: 7335782
    Abstract: Photoinitiator compounds of formula (I): {where: A represents a direct bond or a group of formula —[O(CHR7CHR6)a]y—, —[O(CH2)bCO]y—, or —[O(CH2)bCO](y-1)—[O(CHR7CHR6)a]—, where one of R6 and R7 is hydrogen and the other is hydrogen or methyl; a is a number from 1 to 2; b is a number from 4 to 5; Q is a residue of a polyhydroxy compound having 2 to 6 hydroxy groups; x is a number greater than 1 but no greater than the number of available hydroxyl groups in Q; y is a number from 1 to 10; R1, R2, R3 and R4 are individually the same or different and each is hydrogen, hydroxy, or alkyl; or R1 and R3 are joined to form a fused ring system with the benzene rings to which they are attached; and R5 represents a direct bond, an oxygen atom or a methylene group} are useful as cationic photoinitiators, especially for use in surface coating applications, such as printing inks and varnishes, and which are intended to be cured by polymerisation initiated by radiation.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: February 26, 2008
    Assignee: Sun Chemical Co.
    Inventors: Shaun L. Herlihy, Robert S. Davidson
  • Patent number: 7241437
    Abstract: Zirconia particles, methods of making zirconia particles, composite materials that contain the zirconia particles, methods of making the composite materials, and zirconia sols that contain the zirconia particles are described. The zirconia particles are substantially non-associated and have an average size no greater than 50 nanometers and may contain yttrium. The zirconia particles are prepared by a method that includes two separate hydrothermal treatments.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: July 10, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Robert S. Davidson, Brant U. Kolb, Danny B. Anderson, James A. Higgins, Mark J. Hendrickson, John T. Brady
  • Publication number: 20060059020
    Abstract: An insurance method comprising a return-of-premium (ROP) benefit is disclosed. The ROP benefit is applied to property and casualty insurance and related insurance forms. The ROP benefit provides a return of all premiums after a set period of insurance, less the amount of any claims made by the insured. The policy may then be rolled over to again provide a ROP benefit to the policyholder. Fractional ROP benefit returns may be made on the policy after a minimum set period less than the full term of the policy. The ROP benefit may be provided by means of a rider to a standard property or casualty policy.
    Type: Application
    Filed: September 10, 2004
    Publication date: March 16, 2006
    Inventor: S. Davidson
  • Patent number: 6919909
    Abstract: The present invention provides a method and apparatus for displaying two portions of an image at two resolutions. For example, the invention can display an entire image at a first resolution, and a subset of the image at a second, higher resolution. Two inexpensive, low resolution displays can be used to produce a large image with high resolution only where needed.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: July 19, 2005
    Assignee: Sandia Corporation
    Inventors: Barry L. Spletzer, George S. Davidson, Daniel J. Zimmerer, Lisa C. Marron
  • Patent number: 6910482
    Abstract: An on demand supplemental oxygen delivery system that is self-calibrating includes a tank containing a supply of oxygen and a nasal cannula through which the oxygen may be provided to a patient when the system solenoid valve is in the open condition. When the valve is in the closed condition, the cannula communicates with a pressure transducer via a transducer line. An orifice is formed in the line so that the pressure within the transducer line goes to atmospheric pressure when the valve is in the open condition. The pressure transducer reads the atmospheric pressure and directs it to a system controller where it is stored as a reference pressure.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: June 28, 2005
    Assignee: Chart Inc.
    Inventors: Peter L. Bliss, Willard S. Davidson
  • Patent number: 6869501
    Abstract: A process for evaporating a portion of a colloidal solution, said process including: a) passing a colloidal solution, said colloidal solution including particles in a liquid medium, wherein at least a portion of said liquid medium includes at least one volatile component, through one or more orifices into an evaporation zone that has at least one inner surface, wherein said colloidal solution does not substantially contact said at least one inner surface of said evaporation zone as said colloidal solution is passed through said evaporation zone; b) applying pressure in said evaporation zone that is lower than the vapor pressure of said colloidal solution as it is passed into said evaporation zone, allowing for flash evaporation of at least a portion of said at least one volatile component from said colloidal solution; c) adjusting the pressure in said evaporation zone to evaporate an amount of said at least one volatile component from said colloidal solution; and d) collecting the remaining colloidal solution
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: March 22, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Robert S. Davidson, Danny B. Anderson, Richard A. Gerth, David R. Holm
  • Publication number: 20040191302
    Abstract: A medicant composition is provided. The composition includes a film layer and a powder matrix layer. The powder matrix layer includes a medicant. The powder matrix layer is applied to the film layer by admixing particulate to form a powder matrix and by then applying the powder matrix to the film layer by any desired method. The composition of the powder matrix is varied to alter the dissolution rate of the medicant, the adhesion of the medicant composition, and other physical properties of the powder matrix. The powder matrix layer can be cured.
    Type: Application
    Filed: March 28, 2003
    Publication date: September 30, 2004
    Inventor: Robert S. Davidson
  • Publication number: 20040131662
    Abstract: A medicant composition is provided. The composition includes a film layer and a powder matrix layer. The powder matrix layer includes a medicant. The powder matrix layer is applied to the film layer by admixing particulate to form a powder matrix and by then applying the powder matrix to the film layer by any desired method. The composition of the powder matrix is varied to alter the dissolution rate of the medicant, the adhesion of the medicant composition, and other physical properties of the powder matrix. The powder matrix layer can be cured.
    Type: Application
    Filed: November 12, 2003
    Publication date: July 8, 2004
    Inventors: Robert S. Davidson, Gary S. Kehoe
  • Publication number: 20030215491
    Abstract: A bioadhesive phosphomatrix composition and method for rapid delivery of effective amounts of active substances through the nasal membrane into the circulatory system. The composition may contain permeation enhancers that facilitate delivery of the active substance to the systemic circulation.
    Type: Application
    Filed: April 11, 2003
    Publication date: November 20, 2003
    Inventors: Charles B. Hensley, Robert S. Davidson
  • Publication number: 20030150455
    Abstract: An on demand supplemental oxygen delivery system that is self-calibrating includes a tank containing a supply of oxygen and a nasal cannula through which the oxygen may be provided to a patient when the system solenoid valve is in the open condition. When the valve is in the closed condition, the cannula communicates with a pressure transducer via a transducer line. An orifice is formed in the line so that the pressure within the transducer line goes to atmospheric pressure when the valve is in the open condition. When the valve is in the open condition, the pressure transducer reads the atmospheric pressure and directs it to a system controller where it is stored as a reference pressure. When the valve is in the closed condition, the pressure transducer monitors the pressure in the nasal cannula.
    Type: Application
    Filed: October 18, 2002
    Publication date: August 14, 2003
    Inventors: Peter L. Bliss, Willard S. Davidson
  • Publication number: 20030131948
    Abstract: Described is a process for evaporating a portion of a colloidal solution, said process comprising: a) passing a colloidal solution, said colloidal solution comprising particles in a liquid medium, wherein at least a portion of said liquid medium comprises at least one volatile component, through one or more orifices into an evaporation zone that has at least one inner surface, wherein said colloidal solution does not substantially contact said at least one inner surface of said evaporation zone as said colloidal solution is passed through said evaporation zone; b) applying pressure in said evaporation zone that is lower than the vapor pressure of said colloidal solution as it is passed into said evaporation zone, allowing for flash evaporation of at least a portion of said at least one volatile component from said colloidal solution; c) adjusting the pressure in said evaporation zone to evaporate an amount of said at least one volatile component from said colloidal solution; and d) collecting the remaining co
    Type: Application
    Filed: December 20, 2001
    Publication date: July 17, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Robert S. Davidson, Danny B. Anderson, Richard A. Gerth, David R. Holm